Human and natural resources, as well as the nurture of technologies need to be Bulgaria's top priorities to boost its national security, stated Bulgarian President Rosen Plevneliev.

Thursday Plevneliev gave a lecture during a forum dubbed "Current problems and priorities in Bulgaria's national security system."

"One of the chief problems that Bulgaria will face in 2021 will be a demographic crisis. So we must implement policies that will make young Bulgarian emigrants return, and attract qualified youngsters from other countries," said the President.